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Joined 11 months ago
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Cake day: July 29th, 2023

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  • Are you sure that’s the case with btrfs? I know ext has that feature. My understanding is btrfs just has a global reserve that can be used for any data in an low space situation.

    # sudo btrfs fi usage /mnt/disk3
    Overall:
        Device size:                  12.73TiB
        Device allocated:             12.73TiB
        Device unallocated:            1.00MiB
        Device missing:                  0.00B
        Device slack:                    0.00B
        Used:                         12.29TiB
        Free (estimated):            449.43GiB      (min: 449.43GiB)
        Free (statfs, df):           449.43GiB
        Data ratio:                       1.00
        Metadata ratio:                   2.00
        Global reserve:              512.00MiB      (used: 0.00B)
        Multiple profiles:                  no
    
    Data,single: Size:12.70TiB, Used:12.26TiB (96.55%)
       /dev/sdd1      12.70TiB
    
    Metadata,DUP: Size:15.00GiB, Used:14.49GiB (96.58%)
       /dev/sdd1      30.00GiB
    
    System,DUP: Size:8.00MiB, Used:1.34MiB (16.80%)
       /dev/sdd1      16.00MiB
    
    Unallocated:
       /dev/sdd1       1.00MiB